Moorpark Apricot
Pollination & Compatibility Guide
Moorpark apricot pollination guide: Group 3 bloom, reliable donor role, provisional chill estimate and frost-site planning. Partners and bloom overlap.
Moorpark Sets Fruit Alone (Partner Optional)
Named as a reliable general donor for the whole self-incompatible group, alongside Tilton, Harcot and Blenheim.
- Ploidy / Pool
- Diploid · Pool C
- Required Companions
- 0 (Self-Fertile)
- Bloom Group
- Group 3 (Mid-Spring)
- Harvest Timing
- Mid-Late Season
- Chill Estimate
- ~650 h below 7.2°C Provisional; verify locallySource: Pomologist review, 2026-07-24 (~600-700 h)
Flowering Period & Overlap Window
Apricots flower before peach, plum and cherry, so bloom overlap and spring frost decide most outcomes. Self-fertility varies by origin: many Mediterranean-type cultivars set alone, while several North American releases need a compatible partner flowering at the same time.
Moorpark flowers within the apricot Group 2–4 window. Partner-dependent cultivars need a compatible apricot whose flowers overlap in the same days.
Compatible Pollination Partners (22)
| Cultivar | Bloom Group | Overlap Type | Harvest | Primary Uses | Interactive Test |
|---|---|---|---|---|---|
| Group 3 | Full Overlap | Early | Fresh Eating, Canning, Preserves | Test Cross | |
| Group 3 | Full Overlap | Late | Fresh Eating, Canning, Drying, Preserves | Test Cross | |
AC Harojoy | Group 3 | Full Overlap | Mid-Late | Fresh Eating, Canning, Freezing, Jam | Test Cross |
Canadian White | Group 3 | Full Overlap | Mid | Fresh Eating, Preserves | Test Cross |
| Group 3 | Full Overlap | Early | Fresh Eating, Freezing, Canning | Test Cross | |
Harogem | Group 3 | Full Overlap | Late | Fresh Eating, Canning, Freezing, Jam | Test Cross |
Nugget | Group 3 | Full Overlap | Mid | Fresh Eating, Drying | Test Cross |
| Group 3 | Full Overlap | Mid | Canning, Drying | Test Cross | |
| Group 3 | Full Overlap | Late | Fresh Eating, Canning, Preserves | Test Cross | |
Robada | Group 3 | Full Overlap | Mid | Fresh Eating, Drying | Test Cross |
Skaha | Group 3 | Full Overlap | Mid | Fresh Eating | Test Cross |
| Group 2 | Full Overlap | Mid | Fresh Eating, Canning, Drying, Preserves | Test Cross | |
| Group 4 | Full Overlap | Early-Mid | Fresh Eating, Canning, Drying, Baking | Test Cross | |
| Group 2 | Full Overlap | Early | Fresh Eating (Hybrid) | Test Cross | |
| Group 2 | Full Overlap | Early | Fresh Eating | Test Cross |
Incompatible Varieties & Exclusions (7)
These cultivars cannot serve as pollinizers for Moorpark because their flowering does not overlap, their pollen is unsuitable, or they share the same incompatibility group.
apricot incompatibility groups are only partly mapped, so only cultivars documented as reliable donors are offered. Goldbar is not one of them — that is a gap in the data, not evidence it is incompatible.
apricot incompatibility groups are only partly mapped, so only cultivars documented as reliable donors are offered. Goldrich is not one of them — that is a gap in the data, not evidence it is incompatible.
apricot incompatibility groups are only partly mapped, so only cultivars documented as reliable donors are offered. Goldstrike is not one of them — that is a gap in the data, not evidence it is incompatible.
apricot incompatibility groups are only partly mapped, so only cultivars documented as reliable donors are offered. Perfection is not one of them — that is a gap in the data, not evidence it is incompatible.
A direct parent (Moorpark open-pollinated seedling) — roughly half the pollen is non-functional, so it is not a reliable partner.
apricot incompatibility groups are only partly mapped, so only cultivars documented as reliable donors are offered. Sundrop is not one of them — that is a gap in the data, not evidence it is incompatible.
apricot incompatibility groups are only partly mapped, so only cultivars documented as reliable donors are offered. Tomcot is not one of them — that is a gap in the data, not evidence it is incompatible.
Grower Commentary: Moorpark as a Reliable Donor
Moorpark is a long-established diploid apricot. Its pomology record shows Group 3 bloom, viable pollen and no required partner. It is also one of the reliable donors named for self-incompatible apricots, so it often earns a place beside Goldrich or Perfection as well as standing alone. Bloom overlap matters more than the label: a donor that finishes flowering before its partner opens does nothing.
Our record holds an estimated 650 hours below 7.2°C, flagged as provisional. Treat it as a comparison figure and check it against local winter records. Apricot flowers before peach, plum and cherry, so chill can be fully met and a frost can still remove the open blossoms. Site drainage decides more of the crop than cultivar choice.
Moorpark ripens mid to late in this catalogue. Thin heavy sets so fruit sizes evenly, and pick by ground colour and softening rather than blush alone. Ask the nursery which rootstock is on the trees, then match it to soil drainage and replant history before ordering.
Key Orchard Considerations for Moorpark
Reliable Group 3 pollen source for Goldrich, Perfection and other partner-dependent apricots.
About 650 h below 7.2°C is a model estimate; compare it with local records.
Choose cold-air drainage first; early bloom fails in frost pockets.
Take Moorpark from Planning to Planting
Use Kropigo's free browser tools to model your block density, tree counts, and pollinizer rows, then maintain permanent orchard records row by row.
Pollination Checker
Check Moorpark against supported cultivars with compatible flowering and pollination data.
Commercial Block Planner
Calculate high-density tree spacing, row geometry, and establishment costs.
Block Record Keeping
Track pruning, chemical thinning, and harvest tallies block by block from the orchard.